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## Homework Statement

Find the exact value of each expression:

a) sec

^{-1}([tex]\sqrt{}2[/tex])

b) sin

^{-1}(1)

## Homework Equations

sec[tex]\theta[/tex]=[tex]\stackrel{}{}1/cos\theta[/tex]

## The Attempt at a Solution

I've never learned this, but I am really curious in how it is solved.

Is there a formula for this? Thanks!